Outline
Section
1-1
8
Heat Exchanger Exit Temperature Control (with cascade feedforward
control)
Inlet
tem perature
Steam f low rate
MV 2
PID 2
MV 2
PV 2
MV 1
PID 1
FF
∗
PV 1
Loop Control Unit
A nalog
Output
Unit
A nalog
Input Unit
Steam
Flowrate
Flow rate
CPU Unit
Exit tem perature
Inlet
flowrate
Inlet tem perature
Exit tem perature
Steam
flowrate
Heat
exchanger
*1: Prepare a feedforw ard m odel for com pensating M V1 in
com bination with lead/delay, segm ent linearizer and
rate-of-change operation.
RSP